Stove-grate



NITED STATES i AHuisnr W. MERRITT, 0F 'SOMERVIL'LE7 MASSACHUSETTS.

sTovE-GRATE.

SPECIPICATIQN formingparz Qf Letters Patent 'Nasser-i3, dates May a, ieee.

Application filed September 14, y1887. Serial No. 249.719. (No model.)

To all whom it may concern.-

Beit known that I, HENRYNV. MERRITT, of Somerville, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Furnace and Stove Grates, of which the following, taken in connection with the accompanying drawings, is a specification.

The object of my invention is to so construct a stove grate that it shall be particularly adapted to round or nearly round fire-boxes, and has a dished or inclined upper surface extending from the lining toward the center, but leaving in the center an opening of about onethird of the diameter of there-pot. This central opening is filled bya circulariudependent piece, which may be a perforated or unperforated disk, as thought best. Both the exterior and interior portions of the grate can be oscillated by means of a cross-handled shaker or wrench on alvertical axis-thatis, in a horizontal plane. The central part may be turned bottom side up, so as to drop considerably below the opening in the exterior portion of the grate, th us leaving a sufficient opening for clearing out the dead coal and reviving the fire. The entire grate canbe tipped on lateral trunnions, so that the front portion is sufficiently lowered to admit of a complete clearing out of the fire-box. anism shown in the accompanying drawings, in whieh- Figure l is a plan showing my grate and a4 portion of the fire-pot. Fig. 2 is a vertical section Aof the same,taken on line x of Fig. l; and Fig. 3 is a side elevation of the grate and supporting-piece.

Iv construct my device as. follows:

' A represents the ldwerpart of a stove or furnace, and B, Figs. l and 2, a part of the lining` ofthe fire-pot.

A A2, Fig. 2, represent the bed-plate upon which the lining of the fire-pot, and also my grate-supporting piece, rests.

. The grate-supporting piece C C in all the drawings is in the form of a semi-circlaasindicated by the full outside line and dotted inside line in Fig. l. The grate-supporting piece C C has ears C', C2, and C3,whieh rest upon the bedplate A2 A2, Figs. l and 2. At each end of This obj eet I attain by the mechthe supporting-piece I make a rounded bearing, one of which is shown at C", Fig. 3, andv both at C5 O6, Fig. l. The'v rounded bearings C? C6 receive trunnion-sockets made in the D? D, Fig. 1. By hanging the grate D on the Y Y grate D. One of these sockets is shown at D, Fig. 3, and-the location of both are shownat lateral trunnion-soekets D3 D, which rest on rounded bearings C5 C6, connected to thesliding supporting-plate C, I am able to dump the entire grate in the usual manner. The grate D rests on the supporting-piece C C, as shown in Fig. 3, and is above the bearings Cl C5, so that it may be oscillated freely in its horizontal plane by means of the handle H H and stem E E2. y

E in all the figures represents a central part,

which may be without perforations' or with as 'many as may be desired. This center grate is supported on trunnions orstemsE E2, which rest in sockets made in the-depending ears D D2 of the grate D. (See Figs; 2'and 3.) The trunnion E2 is extended to form a stem or shank, E3, the end of which is made square to reeeivethe shaking-crank H H', Fig-,2.

The crank H H extends through the front of the ash-pit, as shown in Fig. 2, and may be removed, when-it is desired to'dump the entire grate, by tipping it on the lateral bearings Ci O7.

From the above description it may be understood that inner grate.E, may befturned over on its trunnions EE, so as to occupythe position Shown in the dotted lines in Fig.2, so as to allow the clearing out of the' dead coal or c linkers from the lire-box.

By hanging the inner grate, E, on trunnions that are bent downward, as indicated at EEZ,

Fig. 2, I am enabled to set the axis on which o the grate E turns much below the annular grate4 D, so that in making a quarter-turn of this grate E, I throw it to one side of the opening in the annular grate D, thus leaving a much larger clear opening for the passage of elinkers, &c., than there would be in case the axis of the grate E was on a line with the general plane of the annular grate D. v

To tip or dump the entire grate, the handle H H, Fig. 2, is removed and the doorof the ashpit is opened, so as to allow the luser to insert his or her hand or a poker, and by using the I CC `2. In a stove-grate, the combination of the annular grate D, having a central opening and 15 downwardly-projecting ears D D,With an inner grate, E, having downwardly-inclined trunnions E E, adapted to throw the grate E out of the center of the opening in the grate D, substantially as described, and for the purpo 2o set forth. l

HENRY XV. MERRITT.

Witnesses:

W. R. STEARNs, WILLIAM EDsoN. 

